Lens-mounting.



DALLAs'E. GREEN, or FORT WAYNE, INDIANA.

LENS-MOUNTING.

Specification of Letters Patent.

Patented Api'. 1, 1 913.

Application filed Joly 28, 1911. Serial No. 641,126.

To all whom t may concerny Beit known that I, DALLAS F. GREEN, a citizen of the United States, residing at y Fort Wayne, in the count-y of Allen and State of Indiana, have invented new and useful Improvements in Lens-Mountings, of which-the following' .is a specification.

My present invention relates to improvements in lens -mountings for frameless eyeglasses and spectacles wherein the mounting is secured to the lens by a stud screw which passes through a perforation in the lens.V

This type of mounting usually comprises a box mounted on a post which is adapted to receive and retain one end of the spring or bow and the guard, the post having two parallel ears which straddle the end of the lens and which are secured to the lens by a stud screw which passes through perforations in the ears and the lens. The post. and box project inwardly from the edge of the lens andin substantially the longitudial plane of the-lens. The objections to this forni of mounting are that an excessive proportion of the mounting is exposed to mar the appearance of the article, the size of the lens is necessarily materially reduced. the ears of the mounting project into the field ot vision or field of the lens to such extent that the wearer is annoyed thereby, and as the ears of the mounting are the only portions of the mounting which engage the front and rear surfaces of the lens there is ever present the danger of fracture of ythe lens from strains or shocks adjacent the stud screw.

The object of my invention is to provide a simple and eii'lcient form of mountingfor lenses which shall have an exceedingly small part thereof projecting into the lield of the lens or field of vision, which shall have means to reinforce the lensn adjacent the stud screw perforation and which shall be so constructed that the spring or bow and guard are carried in the rear of the lens, thereby greatly improving t-he usefulness, efficiency and appearance of the eyeglasses or spectacles, and enabling me to materially increase the size of the lens.

My invention consists in 'tlie.novel`com binat-ion, construction and arrangement of part-s hereinafter set fort-h, one embodiment of which is illustrated in the accompanying drawings, in which drawings- Figure lis a view of one form of lens .adapted for use with my lens"1nounting;

Fig. 2, a view of another forni of lens tor a similar purpose; F ig. 3 an edge view .ot a lens with my mounting secured in place; Fig. 4 an end view of Fig. 3; Fig. 5, a view of the blank from which the mounting is formed; Fig. 6, a side view of the mounting as formed from. the blank; Fig. 7, a plan view of one form of box which supports the guard and spring or bow; Fig. `El, a lside view of Fig. 7; and Fig. 9, an enlarged vien` of a lens equipped with my mounting/,and

showing a guard and spring supported thereon.

Referring to the drawings, l. is a lens having an extension 2 or 2 of suitable form at one or both lends; Q is an opening in 'the lens which arranged so that its perijgiherj.'

would touch or very closely appiouch the oval end or edge of the lens were projection Qnor 9. not present on the lens.

3 is a box which is preferably stamped or struck up in blank form from a single pic-.iai of sheet metal, or other suitable material, as shown in Fig. The blank conf` sts of a plate et having three projections 5, and 7 extending from two opposite edges. and per` forated ears 8 projecting from opposite ends, one of the perfoiations being threaded. The' central projections G are preferably tapered as shown and the inner edges of projections 5 and 7 extend inwardly toward the adjacent edges of projections G so as to leave tapered openings or slots between the sam-e.. The outer edges of projections and 7 are given, substantially, t-he curvature of the. oval o-f the lens proper-th`e oval of the inner end of the lens disregarding the extension 2 `or 2. The blank is then bent to conform to the contour of the edge of extension 2 or 2 on the lens, and projections 5 and 7 and the adjacent portions of plate 4, -together with ears S are bent .into parallel relation and at right angles to the plane of the central portion of plate el. A socket or box 9 of suitable `form is secured, as by soldering, to plate el. adjacent one of the ing in the shank of nose guard 1'2, the bow and guard being thereby rigidly secured to the box. lhen so, secured the edges of the boW and shank abut the short arm or side 'of box 9 and the rear side of box 3.

It Will be seen that box 9 is wholly in the rear of box 3 and that no portion of it pro-y jects into the field of vision of the lens nor beyond the outer edge of box 3. In attaching box 3 to t-he lens, screw 13 is inserted through 'the perforated ears 8 and the' opening in the lens and istightened to draw the several prongs of the box into close engagement Withpthe front and rear surfaces and edge of the lens. Prongs 5 and 7, which engage the front and rear surfaces of the projection of the lens, are resilient and form an elastic brace or support for reinforcing that portion of the lens, which portion is adjacent the stud screw opening, and prongs field of the lens nor beyond the end of thel lens box 3.

What I claim is: l l. The combination with a lens having an opening therein, and having an extension at one end outside the field of vision thereof,

of a mount-ing for the lens having a portion engaging the edge of the lens and having resilient lateral projections adapted to engage opposite surfaces of the lens extension to reinforce the lens outside thev field of vision thereof, perforated ears carried by the projections, and a stud screw operative in the lens opening and perforated ears to draw theprojections and ears into' engagement With the lens.

opening therein, and having an extension at one end outside the field of Vision of the lens,

of a mounting for the lens having a portion thereof adapted to engagethe edge of the lens extension, and liaving'lateral resilient projections thereon adapted to engage opposite surfaces of said lens extension, perforated ears carried by the project-ions and a stud screw operative in the lens opening and the perforated ears to draw the mounting and its lateral projections into Contact with the lens extension, the outer edges of the projections substantially coinciding with the edge of the lens extension and the inner edges of the same substantially coinciding with the periphery of the lens proper.

3. The combination with a perforated lens having an extension atl one end thereof which projects outside therfield of vision of the lens, of' a mounting for the lens comprising a box having prongs adapted to engage the edge of the extension and having lateral project-ions and perforated ears adapted to engage opposite surfaces of the extension, the vbox having a second box projecting from the rear side of the same, and a stud screw operative in the lensperforation and perforated ears for securing the mounting to the lens.

4. The combination with a perforated lens having an extension at one end thereof which projects outside the field of vision of the lens, of a mounting for the lens comprising albox having prongs adapted 'to engage the edge of the extension and having lateral projections and perforated ears adapted to engage opposite surfaces of the extension, and a stud screw operative in the lens perforation and perforated ears for securing the mounting to the lens.

In witness whereof I hereunto sign my name in4 the presence of two Witnesses.

DALLAS F. GREEN.

Witnesses:

ISAAC H. TAYLOR, ELWIN D. HULsE. 

